RZR XP 1000 32″ KM2 vs 32″ UTV Tires? December 21, 2015 I have a set of 32×11.50R15 BFG KM2 tires sitting in my garage. I’m concerned that the additional weight will turn the RZR into a sluggish handling machine outside of rock crawling. Has anyone tested both a 31-32" UTV tire vs a 31-32" truck tire? Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related